下面列出了怎么用android.view.InputDevice.MotionRange的API类实例代码及写法,或者点击链接到github查看源代码。
@Override
public boolean onGenericMotion(View v, MotionEvent event) {
if ((event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0
&& event.getAction() == MotionEvent.ACTION_MOVE) {
List<MotionRange> motionRanges = event.getDevice().getMotionRanges();
for(MotionRange mr : motionRanges){
int axis = mr.getAxis();
if(event.getAxisValue(axis) > 0.5 || event.getAxisValue(axis) < -0.5){
Log.i(TAG, "Axis found: " + MotionEvent.axisToString(axis));
this.mAxisName = MotionEvent.axisToString(axis);
mValueTextView.setText(mAxisName);
}
}
}else{
Log.i(TAG, "Not a joystick event.");
}
return true;
}
public List<Joystick> loadJoysticks(int joyId, InputManager inputManager) {
logger.log(Level.INFO, "loading Joystick devices");
ArrayList<Joystick> joysticks = new ArrayList<Joystick>();
joysticks.clear();
joystickIndex.clear();
ArrayList<Integer> gameControllerDeviceIds = new ArrayList<>();
int[] deviceIds = InputDevice.getDeviceIds();
for (int deviceId : deviceIds) {
InputDevice dev = InputDevice.getDevice(deviceId);
int sources = dev.getSources();
logger.log(Level.FINE, "deviceId[{0}] sources: {1}", new Object[]{deviceId, sources});
// Verify that the device has gamepad buttons, control sticks, or both.
if (((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD) ||
((sources & InputDevice.SOURCE_JOYSTICK) == InputDevice.SOURCE_JOYSTICK)) {
// This device is a game controller. Store its device ID.
if (!gameControllerDeviceIds.contains(deviceId)) {
gameControllerDeviceIds.add(deviceId);
logger.log(Level.FINE, "Attempting to create joystick for device: {0}", dev);
// Create an AndroidJoystick and store the InputDevice so we
// can later correspond the input from the InputDevice to the
// appropriate jME Joystick event
AndroidJoystick joystick = new AndroidJoystick(inputManager,
joyInput,
dev,
joyId+joysticks.size(),
dev.getName());
joystickIndex.put(deviceId, joystick);
joysticks.add(joystick);
// Each analog input is reported as a MotionRange
// The axis number corresponds to the type of axis
// The AndroidJoystick.addAxis(MotionRange) converts the axis
// type reported by Android into the jME Joystick axis
List<MotionRange> motionRanges = dev.getMotionRanges();
for (MotionRange motionRange: motionRanges) {
logger.log(Level.INFO, "motion range: {0}", motionRange.toString());
logger.log(Level.INFO, "axis: {0}", motionRange.getAxis());
JoystickAxis axis = joystick.addAxis(motionRange);
logger.log(Level.INFO, "added axis: {0}", axis);
}
// InputDevice has a method for determining if a keyCode is
// supported (InputDevice public boolean[] hasKeys (int... keys)).
// But this method wasn't added until rev 19 (Android 4.4)
// Therefore, we only can query the entire device and see if
// any InputDevice supports the keyCode. This may result in
// buttons being configured that don't exist on the specific
// device, but I haven't found a better way yet.
for (int keyCode: AndroidGamepadButtons) {
logger.log(Level.INFO, "button[{0}]: {1}",
new Object[]{keyCode, KeyCharacterMap.deviceHasKey(keyCode)});
if (KeyCharacterMap.deviceHasKey(keyCode)) {
// add button even though we aren't sure if the button
// actually exists on this InputDevice
logger.log(Level.INFO, "button[{0}] exists somewhere", keyCode);
JoystickButton button = joystick.addButton(keyCode);
logger.log(Level.INFO, "added button: {0}", button);
}
}
}
}
}
loaded = true;
return joysticks;
}
protected JoystickAxis addAxis(MotionRange motionRange) {
String name = MotionEvent.axisToString(motionRange.getAxis());
String original = MotionEvent.axisToString(motionRange.getAxis());
if (motionRange.getAxis() == MotionEvent.AXIS_X) {
original = JoystickAxis.X_AXIS;
} else if (motionRange.getAxis() == MotionEvent.AXIS_Y) {
original = JoystickAxis.Y_AXIS;
} else if (motionRange.getAxis() == MotionEvent.AXIS_Z) {
original = JoystickAxis.Z_AXIS;
} else if (motionRange.getAxis() == MotionEvent.AXIS_RZ) {
original = JoystickAxis.Z_ROTATION;
} else if (motionRange.getAxis() == MotionEvent.AXIS_HAT_X) {
original = JoystickAxis.POV_X;
} else if (motionRange.getAxis() == MotionEvent.AXIS_HAT_Y) {
original = JoystickAxis.POV_Y;
}
String logicalId = JoystickCompatibilityMappings.remapComponent( getName(), original );
if( logicalId == null ? original != null : !logicalId.equals(original) ) {
logger.log(Level.FINE, "Remapped: {0} to: {1}",
new Object[]{original, logicalId});
}
JoystickAxis axis = new DefaultJoystickAxis(getInputManager(),
this,
getAxisCount(),
name,
logicalId,
true,
true,
motionRange.getFlat());
if (motionRange.getAxis() == MotionEvent.AXIS_X) {
xAxis = axis;
}
if (motionRange.getAxis() == MotionEvent.AXIS_Y) {
yAxis = axis;
}
if (motionRange.getAxis() == MotionEvent.AXIS_HAT_X) {
povX = axis;
}
if (motionRange.getAxis() == MotionEvent.AXIS_HAT_Y) {
povY = axis;
}
addAxis(axis);
axisIndex.put(motionRange.getAxis(), axis);
return axis;
}